{"id":"vidhyamitra:city-day:perth:2109-10-22:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2109-10-22","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2109-10-22","date_display":"October 22, 2109 CE","panchanga":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2109,"month":10,"day":22,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2491650.770833,"kali_year":5211,"ahargana":1903185.2708,"sun":{"sidereal_longitude":182.1677,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":154.1611,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":331.9935,"elapsed_within_tithi_degrees":7.9935},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3,"moon_longitude":154.1611,"elapsed_within_degrees":7.4945},"yoga":{"number":26,"name":"Indra","sum_longitude":336.3288},"karana":{"half_tithi_index":55,"name":"Vaṇija"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"sky":{"method":"Sūrya-Siddhāntic Bhāskara-II 4-step iteration with atan2-based śīghra + varying peripheries + lunar latitude","engine_version":"3.0 (Pūrṇa — complete SS implementation)","tradition_sources":"Āryabhaṭīya 499 CE → SS Ch.1-5 Burgess 1860 → Siddhānta-Śiromaṇi Bhāskara II 1150 → Tantrasaṅgraha Nīlakaṇṭha 1501","input":{"year":2109,"month":10,"day":22,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2491650.770833,"ahargana":1903185.2708,"kali_year":5211,"ayanamsa_lahiri":25.3869,"grahas":{"sun":{"sidereal_longitude":183.15637500000003,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":154.289575,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false,"latitude":1.0933},"mars":{"sidereal_longitude":136.15087499999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":188.71907499999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":116.08157499999999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":226.76727499999993,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":277.81437500000004,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":140.0856,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":320.0856,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false}},"panchang":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2109,"month":10,"day":22,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2491650.770833,"kali_year":5211,"ahargana":1903185.2708,"sun":{"sidereal_longitude":182.1677,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":154.1611,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":331.9935,"elapsed_within_tithi_degrees":7.9935},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3,"moon_longitude":154.1611,"elapsed_within_degrees":7.4945},"yoga":{"number":26,"name":"Indra","sum_longitude":336.3288},"karana":{"half_tithi_index":55,"name":"Vaṇija"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.093,"elongation":28.007},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.093,"opposition_distance":151.993}},"eclipse_window_40days":[]},"city":{"slug":"perth","name":"Perth, Australia","lat":-31.9505,"lon":115.8605,"tz_offset_hours":8,"country":"AU","tier":"diaspora"},"tier2":{"city":{"slug":"perth","name":"Perth, Australia","lat":-31.9505,"lon":115.8605,"tz_offset_hours":8,"country":"AU","tier":"diaspora"},"sunriseLocal":"05:29","sunsetLocal":"18:32","solarNoonLocal":"12:01","dayLengthHours":13.058985932192952,"dayLengthDisplay":"13 Hours 03 Mins 32 Secs","nightLengthDisplay":"10 Hours 56 Mins 28 Secs","moonriseLocal":"04:03","moonsetLocal":"16:08","rahuKala":{"name":"Rāhu Kāla","start":"15:16","end":"16:54","startHours":15.27488533456825,"endHours":16.907258576092367,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:45","end":"10:23","startHours":8.745392368471775,"endHours":10.377765609995894,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:01","end":"13:39","startHours":12.010138851520011,"endHours":13.64251209304413,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:32","end":"08:58","startHours":8.527742602935225,"endHours":8.963042134008322,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:01","end":"06:22","startHours":6.024770299264909,"endHours":6.373009924123387,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:34","end":"12:27","startHours":11.574839320446912,"endHours":12.44543838259311,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:44","end":"04:37","startHours":3.7394477611311427,"endHours":4.610046823277339,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:24","end":"05:29","startHours":4.392397057740791,"endHours":5.480645885423536,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:11","end":"15:03","startHours":14.186636506885504,"endHours":15.0572355690317,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:20","end":"18:44","startHours":18.33963181761649,"endHours":18.739631817616488,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:32","end":"19:05","startHours":18.53963181761649,"endHours":19.083756231457862,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:17","end":"20:02","startHours":18.28963181761649,"endHours":20.03963181761649,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:34","end":"00:27","startHours":23.574839320446912,"endHours":24.44543838259311,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:29","end":"07:07","startHours":5.480645885423536,"endHours":7.1130191269476555,"quality":"inauspicious"},{"name":"Udveg","start":"07:07","end":"08:45","startHours":7.1130191269476555,"endHours":8.745392368471775,"quality":"inauspicious"},{"name":"Chala","start":"08:45","end":"10:23","startHours":8.745392368471775,"endHours":10.377765609995894,"quality":"neutral"},{"name":"Labha","start":"10:23","end":"12:01","startHours":10.377765609995894,"endHours":12.010138851520011,"quality":"auspicious"},{"name":"Amṛta","start":"12:01","end":"13:39","startHours":12.010138851520011,"endHours":13.64251209304413,"quality":"auspicious"},{"name":"Kāla","start":"13:39","end":"15:16","startHours":13.64251209304413,"endHours":15.27488533456825,"quality":"inauspicious"},{"name":"Śubha","start":"15:16","end":"16:54","startHours":15.27488533456825,"endHours":16.907258576092367,"quality":"auspicious"},{"name":"Roga","start":"16:54","end":"18:32","startHours":16.907258576092367,"endHours":18.53963181761649,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:32","end":"19:54","startHours":18.53963181761649,"endHours":19.90725857609237,"quality":"inauspicious"},{"name":"Śubha","start":"19:54","end":"21:16","startHours":19.90725857609237,"endHours":21.27488533456825,"quality":"auspicious"},{"name":"Roga","start":"21:16","end":"22:39","startHours":21.27488533456825,"endHours":22.642512093044132,"quality":"inauspicious"},{"name":"Udveg","start":"22:39","end":"00:01","startHours":22.642512093044132,"endHours":24.01013885152001,"quality":"inauspicious"},{"name":"Chala","start":"00:01","end":"01:23","startHours":24.01013885152001,"endHours":25.377765609995894,"quality":"neutral"},{"name":"Labha","start":"01:23","end":"02:45","startHours":25.377765609995894,"endHours":26.745392368471776,"quality":"auspicious"},{"name":"Amṛta","start":"02:45","end":"04:07","startHours":26.745392368471776,"endHours":28.113019126947655,"quality":"auspicious"},{"name":"Kāla","start":"04:07","end":"05:29","startHours":28.113019126947655,"endHours":29.480645885423534,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:29","end":"06:29","startHours":5.480645885423536,"endHours":6.480645885423536,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:29","end":"07:29","startHours":6.480645885423536,"endHours":7.480645885423536,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:29","end":"08:29","startHours":7.480645885423536,"endHours":8.480645885423536,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:29","end":"09:29","startHours":8.480645885423536,"endHours":9.480645885423536,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:29","end":"10:29","startHours":9.480645885423536,"endHours":10.480645885423536,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:29","end":"11:29","startHours":10.480645885423536,"endHours":11.480645885423536,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:29","end":"12:29","startHours":11.480645885423536,"endHours":12.480645885423536,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:29","end":"13:29","startHours":12.480645885423536,"endHours":13.480645885423536,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:29","end":"14:29","startHours":13.480645885423536,"endHours":14.480645885423536,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:29","end":"15:29","startHours":14.480645885423536,"endHours":15.480645885423536,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:29","end":"16:29","startHours":15.480645885423536,"endHours":16.480645885423534,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:29","end":"17:29","startHours":16.480645885423534,"endHours":17.480645885423534,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:29","end":"18:29","startHours":17.480645885423534,"endHours":18.480645885423534,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:29","end":"19:29","startHours":18.480645885423534,"endHours":19.480645885423534,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:29","end":"20:29","startHours":19.480645885423534,"endHours":20.480645885423534,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:29","end":"21:29","startHours":20.480645885423534,"endHours":21.480645885423534,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:29","end":"22:29","startHours":21.480645885423534,"endHours":22.480645885423534,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:29","end":"23:29","startHours":22.480645885423534,"endHours":23.480645885423534,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:29","end":"00:29","startHours":23.480645885423534,"endHours":24.480645885423534,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:29","end":"01:29","startHours":24.480645885423534,"endHours":25.480645885423534,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:29","end":"02:29","startHours":25.480645885423534,"endHours":26.480645885423534,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:29","end":"03:29","startHours":26.480645885423534,"endHours":27.480645885423534,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:29","end":"04:29","startHours":27.480645885423534,"endHours":28.480645885423534,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:29","end":"05:29","startHours":28.480645885423534,"endHours":29.480645885423534,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"North (Uttara)","chandraVasa":"North-West","rahuVasa":"North","anandadiYoga":{"name":"Śubha","quality":"Auspicious"},"tropicalRitu":"Śarad (Autumn)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-10.955438018568174,"eotMinutes":15.949668908799335,"ayanamsa":25.3869}},"calendars":{"vikram_samvat":2166,"vikram_samvatsara":"Citrabhānu","saka_samvat":2031,"saka_samvatsara":"Śukla","bengali_samvat":1516,"malayalam_era":1285,"nanakshahi_year":640,"lunar_month":"Kārtika","lunar_month_paksha_full":"Kārtika Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Kārtika","lunar_month_amanta":"Āśvina","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Tulā (Aippasi)","ritu":"Śarad (Autumn)","display_summary":"Kārtika Kṛṣṇa Trayodaśī · Vikram 2166 Citrabhānu · Śaka 2031 Śukla"},"festivals":[{"id":"dhanteras","name":"Dhanteras (Dhanvantari Jayantī)","name_sanskrit":"धनतेरस / धन्वन्तरि जयन्ती","tradition":"Pan-Hindu","associated_deity":"Dhanvantari (Āyurveda-deva, avatāra of Viṣṇu)","significance":"Birth of Dhanvantari from samudra-mathana with amṛta-kalaśa. Day 1 of Diwali.","vrata":true,"detection":{"tithi_number":28,"tithi_paksha":"Kṛṣṇa","lunar_month":"Kārtika"},"precedence":2,"sources":["Bhāgavata 8.8.32-34"]},{"id":"pradosha-vrata","name":"Pradoṣa Vrata","name_sanskrit":"प्रदोष व्रत","tradition":"Shaiva","associated_deity":"Śiva","significance":"Twilight worship of Śiva on Trayodaśī.","vrata":true,"detection":{"any_of":[{"tithi_number":13},{"tithi_number":28}]},"precedence":7}],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"perth"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga October 22, 2109 CE · Perth, Australia · Vidhyamitra","description":"October 22, 2109 CE for Perth, Australia: Kṛṣṇa Trayodaśī, sūryodaya 05:29, sūryāsta 18:32.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2109-10-22","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2109-10-22","sa":"https://sa.vidhyamitra.com/city/perth/2109-10-22","hi":"https://hi.vidhyamitra.com/city/perth/2109-10-22","x-default":"https://vidhyamitra.com/city/perth/2109-10-22"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T07:38:55.178Z","verification":{"type":"multi-marker","confidence":"canonical"}},{"pillar":"Vidhyamitra-Tier2","pillar_version":"0.1.0","method":"Spherical astronomy + Lahiri ayanamsa + standard solar declination + EoT correction","retrieved_at":"2026-06-01T07:38:55.178Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T07:38:55.178Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}